Home / 21,024,139.20-31,536,208.80-21,024,139.20

Finding the Fourth Proportional to 21,024,139.20, 31,536,208.80 and 21,024,139.20

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Solution

The fourth proportional to 21,024,139.20, 31,536,208.80 and 21,024,139.20 is: 31,536,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,024,139.20 : 31,536,208.80 = 21,024,139.20 : x
  2. Step 2: Convert to fraction form
    21,024,139.20/31,536,208.80 = 21,024,139.20/x
  3. Step 3: Cross multiply
    21,024,139.20x = 31,536,208.80 × 21,024,139.20
  4. Step 4: Simplify right side
    21,024,139.20x = 663,021,643,651,465
  5. Step 5: Solve for x
    x = 663,021,643,651,465/21,024,139.20
  6. Step 6: Final answer
    x = 31,536,208.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.